Podcast
Questions and Answers
Which type of bones are shaped with regular orientation and occur in the wrist and ankle?
Which type of bones are shaped with regular orientation and occur in the wrist and ankle?
- Irregular bones
- Flat bones
- Long bones
- Short bones (correct)
What is the main function of the skeletal muscles attached to the skeletal system?
What is the main function of the skeletal muscles attached to the skeletal system?
- Movement (correct)
- Growth of bones
- Blood cell formation
- Storage of fat
Which type of bones do not fit neatly into any other category and include examples like vertebral and hip bones?
Which type of bones do not fit neatly into any other category and include examples like vertebral and hip bones?
- Long bones
- Sesamoid bones
- Irregular bones (correct)
- Flat bones
Where does blood cell formation occur in bones?
Where does blood cell formation occur in bones?
What is the primary storehouse of minerals in bones?
What is the primary storehouse of minerals in bones?
Which type of bone has a length greater than its width and acts as a lever pulled by muscle contractions?
Which type of bone has a length greater than its width and acts as a lever pulled by muscle contractions?
What is the function of the epicondyle on a bone?
What is the function of the epicondyle on a bone?
Which of the following bones has a tuberosity?
Which of the following bones has a tuberosity?
What is the primary function of the crest on a bone?
What is the primary function of the crest on a bone?
Which part of the skeleton consists of bones that lie around the axis of the body?
Which part of the skeleton consists of bones that lie around the axis of the body?
What is the main difference between the axial and appendicular skeleton?
What is the main difference between the axial and appendicular skeleton?
Why is the hyoid bone not considered part of the skull?
Why is the hyoid bone not considered part of the skull?
What is the function of the skeletal system related to support?
What is the function of the skeletal system related to support?
Which type of connective tissue is predominantly found in the human skeletal system?
Which type of connective tissue is predominantly found in the human skeletal system?
What is the term for the region in a long bone where growth in length occurs?
What is the term for the region in a long bone where growth in length occurs?
Which cells are responsible for lining the surfaces of bones?
Which cells are responsible for lining the surfaces of bones?
What term is used for the process of bone formation?
What term is used for the process of bone formation?
'Malungkot na skeleton' translates to what in English?
'Malungkot na skeleton' translates to what in English?
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Study Notes
The Skeletal System
- The skeletal system includes bones, joints, cartilages, and ligaments, providing body protection and motion.
Functions of the Skeletal System
- Supports and anchors soft organs
- Protects soft body organs
- Enables movement through skeletal muscles attached to bones
- Stores fat in internal cavities of bones
- Serves as a storehouse of minerals like calcium and phosphorus
- Facilitates blood cell formation within marrow cavities of certain bones
Bone Tissue
- Living bone is a moist, changing, and productive tissue that is continually resorbed, reformed, and remodeled
- Types of bones: long, short, flat, irregular, and sesamoid bones
- Long bones are longer than they are wide, example: arm and leg bones
- Short bones are equal in length, width, and thickness, example: wrist and ankle bones
- Flat bones are thin or curved, example: ribs, scapulae, sternum, and bones of cranium
- Irregular bones do not fit into any other category, example: vertebral, facial, and hipbone
- Sesamoid bones are small bones embedded within certain tendons, example: patella and pisiform carpal bone
Bone Surface Markings
- Head: expanded, rounded surface at the proximal end of a bone often joined to the shaft by a narrowed neck, example: head of femur
- Facet: small, flat surface, example: articular facet of ribs
- Process: to which tendons, ligaments, and other connective tissue attach
- Tubercle: a knob-like process, example: greater tubercle of humerus
- Tuberosity: a large, round, roughened process, example: ischeal tuberosity
- Trochanter: a large, blunt projection found only on femur
- Crest: a prominent ridge, example: iliac crest
- Line: a less prominent ridge than a crest
- Spinous process: a sharp, slender process, example: ischeal spin
- Epicondyle: a prominence above a condyle, example: medial epicondyle of femur
Divisions of the Skeletal System
- Axial skeleton: consists of bones that lie around the axis
- Appendicular skeleton: consists of bones of the upper and lower extremities and bones of girdles
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